Orientation Behavior of the PredatorLaricobius nigrinus(Coleoptera: Derodontidae) to Hemlock Woolly Adelgid and Host Tree Odors in a Multi-Chambered Olfactometer
نویسندگان
چکیده
منابع مشابه
Orientation behavior of the predator Laricobius nigrinus (Coleoptera: Derodontidae) to hemlock woolly adelgid and host tree odors in a multi-chambered olfactometer.
We studied the adult ambulatory response of the predator, Laricobius nigrinus Fender (Coleoptera: Derodontidae), to odors from its prey, Adelges tsugae Annand, the hemlock woolly adelgid, and foliage of hemlock woolly adelgid, host hemlocks (Tsuga spp.), and other conifers. Both the predator and hemlock woolly adelgid are apparently native to western North America, but the predator is being re...
متن کاملBehavioral Responses of Laricobius spp. and Hybrids (Coleoptera: Derodontidae) to Hemlock Woolly Adelgid and Adelgid Host Tree Odors in an Olfactometer.
The predatory species Laricobius nigrinus (Fender) and Laricobius osakensis (Shiyake and Montgomery) (Coleoptera: Derodontidae) have been released for biological control of hemlock woolly adelgid (Adelges tsugae; Hemiptera: Adelgidae) in eastern North America. L. osakensis is native to Japan, whereas L. nigrinus is endemic to the Pacific Northwest of the United States and Canada. After release,...
متن کاملHemlock Woolly Adelgid and Elongate Hemlock Scale : Partners in Crime ?
The increased mortality of the eastern hemlock in North America has been primarily attributed to the invasion of the hemlock woolly adelgid (HWA). However, in parts of the range of eastern hemlock, the elongate hemlock scale (EHS), another introduced Asian insect, also infests stands and weakens trees. An important step towards achieving the goal of reducing eastern hemlock mortality is to unde...
متن کاملOlfactory Responses of the Hemlock Woolly Adelgid Predator, Laricobius nigrinus (Coleoptera: Derodontidae), to Natural and Synthetic Conifer Volatiles
Laricobius nigrinus Fender (Coleoptera: Derodontidae) is a specialist predator of the hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae), native to the Pacific Northwest. It has been introduced into the eastern United States for biological control of exotic hemlock woolly adelgid populations that threaten native hemlock. The possible role of olfactory cues in host finding by t...
متن کاملFalse ring formation in eastern hemlock branches: impacts of hemlock woolly adelgid and elongate hemlock scale.
Herbivores can alter plant physiology through the induction of abnormal wood formation. Feeding by some insects induces the formation of false rings, a band of thick-walled latewood cells within the earlywood portion of the tree ring that reduces water transport. Hemlock woolly adelgid (Adelges tsugae Annand) and elongate hemlock scale (Fiorinia externa Ferris) are invasive insects that both f...
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ژورنال
عنوان ژورنال: Environmental Entomology
سال: 2011
ISSN: 0046-225X,1938-2936
DOI: 10.1603/en10287